Question

va rog repedeee va rog dau coroana va rog repedeee!!!!!​

Answer 1

a)   (-1/2) ⁻¹ = 1/(-1/2)¹ = 1 : (-1/2)= 1 · (-2/1) = 1 · (-2) = -2

c)  ( 0,(6) )⁻³ =  ( 6/9 )⁻³ = 1/(6/9)³ = 1/ (6/9)³ = 1/(2/3)³ = 1/(2³/3³)=

                     = 1 / (8/27) = 1:(8/27)= 1 · (27/8) = 27/8

e) (1/2) ⁻⁵ = 1/ (1/2)⁵ = 2⁵/1 = 2⁵

g) (1,2)⁻³ = (12/10)⁻³ = 1/(12/10)³ = 1: (12/10)³ = 1:  12³/10³ =

                      = 1 · 10³/12³ = 1000/12³

i)  (4/3)⁻¹⁰  · (4/3)⁸ =  (4/3)⁻¹⁰⁺⁸ = (4/3)⁻² =

                                = 1/ (4/3)² =1: 4²/3²=1· (3²/4²) = 9/16

   mᵃ • mᵇ  = mᵃ⁺ᵇ  

(a : b)ⁿ = (a/b)ⁿ = aⁿ/bⁿ